Latent Heat of Fusion in Enthalpy Formulas

Latent Heat of Fusion is the energy required to change the state of a substance from solid to liquid during the vapour compression refrigeration cycle. And is denoted by h_fg. Latent Heat of Fusion is usually measured using the Kilojoule per Kilogram for Heat of Combustion (per Mass). Note that the value of Latent Heat of Fusion is always negative.

Enthalpy formulas that make use of Latent Heat of Fusion

fxEnthalpy at point 1 given Liquid enthalpy at point 1Go

fxEnthalpy at point 2Go

fxEnthalpy at Point 4 given Liquid Enthalpy at Point 4Go

fxEntropy at point 1Go

fxEntropy at point 2Go

FAQ

What is the Latent Heat of Fusion?

Latent Heat of Fusion is the energy required to change the state of a substance from solid to liquid during the vapour compression refrigeration cycle. Latent Heat of Fusion is usually measured using the Kilojoule per Kilogram for Heat of Combustion (per Mass). Note that the value of Latent Heat of Fusion is always negative.

Can the Latent Heat of Fusion be negative?

Yes, the Latent Heat of Fusion, measured in Heat of Combustion (per Mass) can be negative.

What unit is used to measure Latent Heat of Fusion?

Latent Heat of Fusion is usually measured using the Kilojoule per Kilogram[kJ/kg] for Heat of Combustion (per Mass). Joule per Kilogram[kJ/kg], Calorie (IT) per Gram[kJ/kg] are the few other units in which Latent Heat of Fusion can be measured.

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